Description

GE IS200EPCTG1AZZ Exciter PT/CT Terminal Board

The GE IS200EPCTG1AZZ, also cataloged as the IS200EPCT Exciter PT/CT Terminal Board, operates as a dedicated hardware component for generator voltage and current signal acquisition within GE EX2100 excitation control systems. The board receives PT/CT feedback, performs signal conditioning and isolation, and transfers scaled analog signals to the EMIO interface.

Suffix Breakdown & Model Matrix

Model Element	Description
IS200	GE Mark VI/EX2100 control hardware family
EPCT	Exciter PT/CT Terminal Board functional designation
G1	Board hardware revision identifier
AZZ	Factory configuration and ordering suffix

The IS200EPCTG1AZZ is configured as an EPCT terminal interface board for EX2100 excitation applications. The available configuration supports generator feedback measurement through PT and CT input circuits and provides conditioned outputs for excitation regulation processing.

Hardware Specifications

Parameter	Specification
Model	IS200EPCTG1AZZ
Brand	GE
Origin	United States
Weight	0.5 kg
Dimensions	232 mm x 165 mm x 89 mm
Operating Temp	-40 deg C to +85 deg C
Power Consumption	Low-power signal conditioning and interface processing
Module Type	Exciter PT/CT Terminal Board
Series	EX2100
PT Inputs	2 x three-phase PT inputs, 115 V rms, 50/60 Hz
CT Inputs	2 x CT inputs, 1 A or 5 A
Analog Output	0-10 V or 4-20 mA
Input Burden	<= 1 VA
Signal Isolation	500 Vrms
Mounting Type	EX2100 chassis backplane mount
Wiring Capacity	Up to #10 AWG
Maximum Cable Length	Up to 1000 ft
Humidity Range	5%-95% non-condensing
Compliance	UL 508, IEC 61010-1, RoHS 3

Profinet and Industrial Control Signal Interface Characteristics

The IS200EPCTG1AZZ provides generator feedback interface functions within the GE EX2100 excitation control architecture. The board converts PT voltage measurements and CT current feedback signals into conditioned analog outputs for EMIO board processing.

The module applies signal isolation between measurement circuits and control interfaces. Its analog output scaling supports 0-10 V and 4-20 mA transmission formats used for excitation regulation feedback paths. The hardware design supports deterministic signal transfer between field measurement devices and the excitation controller.

The EPCT board supports I/O density scaling within EX2100 configurations by providing multiple three-phase PT input channels and CT measurement inputs on a single terminal interface assembly. The module can be integrated into simplex and TMR excitation system configurations depending on system architecture requirements.

Frequently Asked Questions

Q: What type of feedback signals can the IS200EPCTG1AZZ process?
A: The board processes generator PT voltage inputs and CT current inputs, providing conditioned analog outputs for excitation control processing.

Q: What analog output signals are available from the EPCT board?
A: The IS200EPCTG1AZZ provides scaled analog outputs in 0-10 V or 4-20 mA formats.

Q: What isolation level is provided between signal circuits?
A: The board provides 500 Vrms signal isolation between measurement circuits and interface paths.

Field Installation Guidelines

Install the IS200EPCTG1AZZ on the designated EX2100 chassis mounting location and verify terminal assignments before connecting PT and CT field wiring.

Use appropriately rated wiring for generator voltage and current measurement circuits. Maintain separation between PT/CT signal cables and high-current power conductors to reduce electromagnetic interference.

Terminate cable shields according to excitation cabinet grounding practices. Verify CT polarity, PT phase sequence, and terminal tightness before energizing the excitation system.

Inspect board connectors, terminal blocks, and conformal-coated surfaces during installation. Confirm that wiring routing follows cabinet clearance and thermal management requirements.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems